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Louis Pasteur ForMemRS (/ ˈ l uː i p æ ˈ s t ɜːr /, French: [lwi pastœʁ] ⓘ; 27 December 1822 – 28 September 1895) was a French chemist, pharmacist, and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization, the last of which was named after him.
In 1856, Pasteur was able to observe the microbes responsible for alcoholic fermentation under a microscope, as a professor of science in the University of Lille. [ 4 ] [ 6 ] According to a legend originating in the 1900 biography of Pasteur, one of his chemistry students—an owner of a beetroot alcohol factory in Lille—sought aid from him ...
Physical chemistry: Mikhail Lomonosov (1711–1765) The first to read lectures in physical chemistry and coin the term (1752). Jacobus van 't Hoff (1852–1911) Jacobus van 't Hoff is considered one of the founders of the discipline of physical chemistry. His work helped found the discipline as it is today. [71] [72] [73] Svante Arrhenius (1859 ...
Louis Pasteur was a pioneer in chemistry, microbiology, immunology and vaccinology. pictore/DigitalVision Vectors via Getty ImagesSome of the greatest scientific discoveries haven’t resulted in ...
1861 – Louis Pasteur discovers the Germ Theory; 1867 – Lister publishes Antiseptic Principle of the Practice of Surgery, based partly on Pasteur's work. 1870 – Louis Pasteur and Robert Koch establish the germ theory of disease. 1878 – Ellis Reynolds Shipp graduates from the Women's Medical College of Pennsylvania and begins practice in ...
1861: Louis Pasteur: Germ theory. 1861: John Tyndall: Experiments in Radiant Energy that reinforced the Greenhouse effect. 1864: James Clerk Maxwell: Theory of electromagnetism. 1865: Gregor Mendel: Mendel's laws of inheritance, basis for genetics. 1865: Rudolf Clausius: Definition of entropy.
The turning point came when Louis Pasteur (1822–1895), during the 1850s and 1860s, repeated Schwann's experiments and showed fermentation is initiated by living organisms in a series of investigations. [20] [40]: 6 In 1857, Pasteur showed lactic acid fermentation is caused by living organisms. [42]
GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home.